Baby bottle nipple



FIG. 1 is a perspective view of a first embodiment of an ornamental design for a baby bottle nipple;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines below the claimed design are for purposes of illustrating environmental structure only; the broken lines within the claimed design that depict a circular shape indicate a non-claimed shape on the surface and is for illustrative purposes only. None of the broken lines form part of the claimed design. 

CLAIM The ornamental design for a baby bottle nipple, as shown and described. 